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| Registros recuperados: 54 | |
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| Haag,Karen Luisa. |
| Abstract Symbioses are ubiquitous and have played an influential role in the evolution of life on Earth. Genomic studies are now revealing a huge diversity of associations among hosts and their microbiotas, allowing us to characterize their complex ecological and evolutionary dynamics. The different transmission modes and the asynchronous cell proliferation of the numerous symbionts associated with one host generate a genomic conflict ought to be solved. Two disputing views have been used to model and predict the outcome of such conflicts. The traditional view is based on community ecology, and considers that selection at the level of individuals is sufficient to explain longstanding associations among species. A new perspective considers that the host and... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Genomics; Metagenomics; Microbiota; Symbiosis; Holobiont. |
| Ano: 2018 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572018000200189 |
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| Colonetti,Karina; Roesch,Luiz Fernando; Schwartz,Ida Vanessa Doederlein. |
| Abstract Research into the influence of the microbiome on the human body has been shedding new light on diseases long known to be multifactorial, such as obesity, mood disorders, autism, and inflammatory bowel disease. Although inborn errors of metabolism (IEMs) are monogenic diseases, genotype alone is not enough to explain the wide phenotypic variability observed in patients with these conditions. Genetics and diet exert a strong influence on the microbiome, and diet is used (alone or as an adjuvant) in the treatment of many IEMs. This review will describe how the effects of the microbiome on the host can interfere with IEM phenotypes through interactions with organs such as the liver and brain, two of the structures most commonly affected by IEMs. The... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Inborn errors of metabolism; Microbiome; Microbiota; Diet; Treatment. |
| Ano: 2018 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572018000400515 |
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| DIAS, J. A.; CARVALHO, B. P.; MESQUITA, A. Q. de; LAMBERTUCCI, D. M.; CAVALCANTE, F. A.. |
| Este estudo teve o objetivo de caracterizar indústrias lácteas e os indicadores de qualidade do leite de propriedades vinculadas às indústrias localizadas nas regiões do Alto Acre, Baixo Acre e Tarauacá-Envira, estado do Acre. Foram avaliadas amostras de leite de 92 rebanhos leiteiros para determinação da Contagem Total de Bactérias (CTB), convertidas em Contagem Padrão em Placas (CPP), e Contagem de Células Somáticas (CCS) realizadas pelo método de citometria de fluxo em equipamento automatizado. O questionário epidemiológico foi aplicado a 56 produtores a fim de obter informações do sistema de produção e manejo. Para a análise de dados foi utilizado o programa Epiinfo 7.2.2.6. As indústrias lácteas avaliadas captavam entre 750 e 11.500 litros/dia, e a... |
| Tipo: Folhetos |
Palavras-chave: Microbiota; Alto Acre; Baixo Acre; Tarauacá-Envira; Epiinfo; Indústria láctea; Acre; Amazônia Ocidental; Western Amazon; Produção Leiteira; Leite; Qualidade; Milk production; Milk quality; Dairy industry. |
| Ano: 2021 |
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1136166 |
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| DIAS, J. A.; OLIVEIRA, A. M. de; MACEDO, S. C. C.; FARIA, G. V.; CONSTANTINO, N. A. S.; SILVA, F. de A. C.. |
| Considerando a predominância do uso de tanques de resfriamento coletivos no armazenamento do leite cru em Rondônia e a grande diversidade de microrganismos deletérios ao leite, o objetivo do trabalho foi avaliar a microbiota deteriorante do leite armazenado em 23 tanques coletivos da microrregião de Ji-Paraná e Cacoal. Para a contagem dos microrganismos utilizou-se semeadura em duplicata de 1 mL em placas de Petrifilm® AC aeróbios mesófilos e Petrifilm® EC coliformes totais de acordo com o fabricante. Para a contagem de psicrotróficos e termodúricos psicotróficos, as amostras foram semeadas em ágar padrão leite a 10%. Para a pesquisa de microrganismos termodúricos mesófilos e psicrotróficos, as amostras foram submetidas ao tratamento térmico (62,8 ± 0,5... |
| Tipo: Folhetos |
Palavras-chave: Microbiota; Cooling tank; Leite; Qualidade; Armazenamento; Tanque; Resfriamento; Milk quality; Cold storage; Microorganisms. |
| Ano: 2001 |
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1136312 |
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| CHAVES, A. C. S. D.; SANT’ANNA, F. E. B.; ANTUNES, L. A.; TORREZAN, R.. |
| O coco verde é muito consumido no Brasil, sendo basicamente utilizado na produção da água de coco (albúmen líquido). A água de coco verde corresponde a aproximadamente 25% do peso do fruto in natura, ou seja, a industrialização resulta em uma grande quantidade de resíduo. O albúmen sólido do coco, em geral, é descartado junto com as cascas. Os leites fermentados podem ter adição de outras substâncias alimentícias, tais como sucos, pedaços, preparados ou polpas de frutas em uma concentração máxima de 30% em relação à massa final do produto. A adição de preparados de frutas conferem diferentes experiências sensoriais, agregando valor ao leite fermentado. A utilização do albúmen sólido de coco verde para elaboração um preparado para conferir aroma e sabor de... |
| Tipo: Folhetos |
Palavras-chave: Albúmen de Coco Verde; Funcional; Microbiota; Resíduo; Polpa. |
| Ano: 2021 |
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1138602 |
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| Travers, Marie-agnes; Sow, Cisse; Zirah, Severine; Deregnaucourt, Christiane; Chaouch, Soraya; Queiroz, Rayner M. L.; Charneau, Sebastien; Allain, Thibault; Florent, Isabelle; Grellier, Philippe. |
| Giardiasis, currently considered a neglected disease, is caused by the intestinal protozoan parasite Giardia duodenalis and is widely spread in human as well as domestic and wild animals. The lack of appropriate medications and the spread of resistant parasite strains urgently call for the development of novel therapeutic strategies. Host microbiota or certain probiotic strains have the capacity to provide some protection against giardiasis. By combining biological and biochemical approaches, we have been able to decipher a molecular mechanism used by the probiotic strain Lactobacillus johnsonii La1 to prevent Giardia growth in vitro. We provide evidence that the supernatant of this strain contains active principle(s) not directly toxic to Giardia but able... |
| Tipo: Text |
Palavras-chave: Giardiasis; Lactobacilli; Probiotics; Microbiota; Bile salts; Anti-giardial activity; Choloylglycine bile acid hydrolase. |
| Ano: 2016 |
URL: http://archimer.ifremer.fr/doc/00351/46211/45906.pdf |
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| Brener-raffalli, Kelly; Clerissi, Camille; Vidal-dupiol, Jeremie; Adjeroud, Mehdi; Bonhomme, Francois; Pratlong, Marine; Aurelle, Didier; Mitta, Guillaume; Toulza, Eve. |
| Background: Although the term holobiont has been popularized in corals with the advent of the hologenome theory of evolution, the underlying concepts are still a matter of debate. Indeed, the relative contribution of host and environment and especially thermal regime in shaping the microbial communities should be examined carefully to evaluate the potential role of symbionts for holobiont adaptation in the context of global changes. We used the sessile, long-lived, symbiotic and environmentally sensitive reef-building coral Pocillopora damicornis to address these issues. Results: We sampled Pocillopora damicornis colonies corresponding to two different mitochondrial lineages in different geographic areas displaying different thermal regimes: Djibouti,... |
| Tipo: Text |
Palavras-chave: Coral holobiont; Microbiota; Bacterial communities; Symbiodinium assemblages; Thermal adaptation; Scleractinian corals; Coral reefs; Pocillopora damicornis. |
| Ano: 2018 |
URL: https://archimer.ifremer.fr/doc/00429/54076/55380.pdf |
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| Cardona, Emilie; Gueguen, Yannick; Magré, Kevin; Lorgeoux, Bénédicte; Piquemal, David; Pierrat, Fabien; Noguier, Florian; Saulnier, Denis. |
| Background Biofloc technology (BFT), a rearing method with little or no water exchange, is gaining popularity in aquaculture. In the water column, such systems develop conglomerates of microbes, algae and protozoa, together with detritus and dead organic particles. The intensive microbial community presents in these systems can be used as a pond water quality treatment system, and the microbial protein can serve as a feed additive. The current problem with BFT is the difficulty of controlling its bacterial community composition for both optimal water quality and optimal shrimp health. The main objective of the present study was to investigate microbial diversity of samples obtained from different culture environments (Biofloc technology and clear... |
| Tipo: Text |
Palavras-chave: Shrimp; Biofloc; Clear sea water; Bacterial communities; Culture environment; Microbiota. |
| Ano: 2016 |
URL: http://archimer.ifremer.fr/doc/00346/45694/45314.pdf |
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| Chiarello, Marlene; Auguet, Jean-christophe; Bettarel, Yvan; Bouvier, Corinne; Claverie, Thomas; Graham, Nicholas A. J.; Rieuvilleneuve, Fabien; Sucre, Elliot; Bouvier, Thierry; Villeger, Sebastien. |
| Background: The surface of marine animals is covered by abundant and diversified microbial communities, which have major roles for the health of their host While such microbiomes have been deeply examined in marine invertebrates such as corals and sponges, the microbiomes living on marine vertebrates have received less attention. Specifically, the diversity of these microbiomes, their variability among species, and their drivers are still mostly unknown, especially among the fish species living on coral reefs that contribute to key ecosystem services while they are increasingly affected by human activities. Here, we investigated these knowledge gaps analyzing the skin microbiome of 138 fish individuals belonging to 44 coral reef fish species living in the... |
| Tipo: Text |
Palavras-chave: Tropical; Teleost; Microbiota; Phylogenetic diversity; Phylosymbiosis; Phylogenetic signal. |
| Ano: 2018 |
URL: https://archimer.ifremer.fr/doc/00454/56565/74934.pdf |
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| Lamari, Faouzi; Castex, Mathieu; Larcher, Thibaut; Ledevin, Mireille; Mazurais, David; Bakhrouf, Amina; Gatesoupe, Joel. |
| Probiotics may have many effects on health and development of fish larvae. One of the most promising is related to spinal conformation, though the mode of action is not clearly understood. The present study attempted to investigate the effects of two strains of lactic acid bacteria on associated microbiota, histological development and gene expression. Sea bass larvae were fed since 5 dph (day post hatch) with either a standard control diet (Diet C), or the same diet supplemented with Pediococcus acidilactici MA18/5M (Diet P), or with an autochthonous strain of Lactobacillus casei (X2; Diet L). The two lactic acid bacteria were incorporated in the diets at the levels of 106 and 107 CFU (colony forming units) g-1 in two consecutive experiments,... |
| Tipo: Text |
Palavras-chave: Fish larvae; Probiotics; Microbiota; Histopathology; Gene expression; DGGE. |
| Ano: 2013 |
URL: http://archimer.ifremer.fr/doc/00108/21966/19673.pdf |
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| Huot, Camille; Clerissi, Camille; Gourbal, Benjamin; Galinier, Richard; Duval, David; Toulza, Eve. |
| Planorbidae snails are the intermediate host for the trematode parasite of the Schistosoma genus, which is responsible for schistosomiasis, a disease that affects both humans and cattle. The microbiota for Schistosoma has already been described as having an effect on host/parasite interactions, specifically through immunological interactions. Here, we sought to characterize the microbiota composition of seven Planorbidae species and strains. Individual snail microbiota was determined using 16S ribosomal DNA amplicon sequencing. The bacterial composition was highly specific to the host strain with limited interindividual variation. In addition, it displayed complete congruence with host phylogeny, revealing a phylosymbiosis pattern. These results were... |
| Tipo: Text |
Palavras-chave: Microbiota; Phylosymbiosis; Metabarcoding; Planorbid snails; Tripartite interactions; Schistosomiasis. |
| Ano: 2020 |
URL: https://archimer.ifremer.fr/doc/00606/71807/70295.pdf |
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| Offret, Clement; Paulino, Sauvann; Gauthier, Olivier; Château, Kevin; Bidault, Adeline; Corporeau, Charlotte; Miner, Philippe; Petton, Bruno; Pernet, Fabrice; Fabioux, Caroline; Paillard, Christine; Blay, Gwenaelle Le. |
| Digestive microbiota provides a wide range of beneficial effects on host physiology and are therefore likely to play a key role in marine intertidal bivalve ability to acclimatize to the intertidal zone. This study investigated the effect of intertidal levels on the digestive bacterial microbiota of oysters Crassostrea gigas and clams Ruditapes philippinarum, two bivalves with different ecological niches. Based on the 16S rRNA region sequencing, digestive glands, seawater and sediments harbored specific bacterial communities, dominated by OTUs assigned to the Mycoplasmatales, Desulfobacterales and Rhodobacterales orders, respectively. Field implantation modified digestive bacterial microbiota of both bivalve species according to their intertidal position.... |
| Tipo: Text |
Palavras-chave: Microbiota; Oysters; Clams; Intertidal zone; Digestive gland; Metabarcoding. |
| Ano: 2020 |
URL: https://archimer.ifremer.fr/doc/00628/73961/73320.pdf |
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| Asmani, Katia; Petton, Bruno; Le Grand, Jacqueline; Mounier, Jerome; Robert, Rene; Nicolas, Jean-louis. |
| This study has two main objectives: (1) to implement a recycling aquaculture system (RS) for the larvae of the oyster Crassostrea gigas, and (2) to characterise the bacterial communities established in different compartments of this system. An RS with 25% fresh seawater addition per hour and another with no addition (0%) were compared with a flow-through system (FT). Larval survival was equivalent in RS and FT, but growth rate was 17% slower in RS than in FT. The physical chemical parameters remained stable, except for pH that decreased to 7.75 and salinity that increased to 37.5‰ in the RS 0%. In both systems, the cultivable bacteria were present in similar numbers in seawater (around 105 ml− 1) and in larvae (103 larva− 1) on day 15. Bacterial... |
| Tipo: Text |
Palavras-chave: RAS; Bivalve larvae; Microbiota; Pyrosequencing; Hatchery. |
| Ano: 2016 |
URL: https://archimer.ifremer.fr/doc/00346/45691/45311.pdf |
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| Menezes,Daniel Ribeiro; Costa,Roberto Germano; Araújo,Gherman Garcia Leal de; Pereira,Luiz Gustavo Ribeiro; Oliveira,Pablo Teixeira Leal de; Silva,Aldrin Ederson Vila Nova; Voltolini,Tadeu Vinhas; Moraes,Salete Alves de. |
| O objetivo deste trabalho foi avaliar os parâmetros sanguíneos, hepáticos e ruminais, bem como caracterizar e quantificar a população de protozoários ciliados, no rúmen de ovinos alimentados com dietas com farelo de mamona destoxificada (FM). Foram utilizados 32 ovinos, para a avaliação dos parâmetros sanguíneos e hepáticos, e quatro ovinos adultos fistulados no rúmen, para a avaliação dos parâmetros ruminais. A dieta controle foi composta por feno de capim-buffel, milho em grão moído, ureia e farelo de soja (FS). Nos tratamentos, o FS foi substituído parcialmente pelo FM a 15, 30 e 45% no concentrado. Não houve diferença, entre os tratamentos, quanto aos teores de ureia no soro, cuja média foi de 666,0 mg L-1. Não houve diferença entre as dietas quanto à... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Ricinus communis; Ciliados; Metabolismo; Microbiota; Rúmen. |
| Ano: 2012 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2012000100014 |
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| Registros recuperados: 54 | |
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